Toccata und Fuge, d moll, BWV 565 (principal 8' only)

Last year november I recorded Bach's (or not) famous Toccata on the small Mascioni organ in Azzio. I was curious how this gran piece would work on a small organ (http://www.contrebombarde.com/concerthall/music/27920). In the comments forum member Adri suggested this piece could even be played on a principal alone.
I thought I'd try that. So here it is.
The toccata is played with the principal 8' for the hands and the subbas 16' and octav 8'for the pedals, coupled to the manual. In the fugue I add the octav 4'. That's it. No extra stops, no manual changes. As bare as one could go.
For the performance I referenced the oldest source available for this piece. Interesting is that the second arpeggio in the toccata is not notated as such in the source. And the end of the toccata is marked prestissimo right untill the last bar. Most performances take these last bars more like molto adagio.